“We are pleased to honor Linus Pauling as one of the top twenty scientists in the world,” said Corvallis Postmaster John Harrington.

After the ceremony, the Postal Service offered a commemorative one-day-only hand-stamped postmark designed specifically for the event.

The new stamp is part of a new series created by the Postal Service honoring American Scientists Gety Cori, Edwin Hubble, John Bardeen, and Linus Pauling. The event was hosted by a combined effort by OSU University Events, Special Collections and Printing and Mailing Services.